Although Hayek hoped humanity would continue 'gradually to approach' a scenario in which the same rules applied to all humans, he warned that the attempt to realise this by allowing the free movement of people would re-awaken nationalist sentiments and set back the cause of freedom. While trade should be free to cross borders, the free movement of people remained an 'ultimate ideal' which should not be pursued impatiently.

Jessica Whyte, The Morals of the Market, loc. 492